Best option for total hip replacement in young: evidence from National Joint Registry of United Kingdom and Australian Orthopaedic Association National Joint replacement Registry

Introduction
 
 Implant longevity is crucial in determining the clinical success of THA. Hence THA young patients will need a careful consideration as failure and revision rates are higher due to high functional demands. Method
 Reviewed latest evidence from 17th annual report National Joint Registry (NJR) United Kingdom 2020 Australian Orthopaedic Association Replacement (AOANJRR) determine optimal mode fixation, bearing surface head size for patient before age 55 years.
 Results In under Years, 10 Year RR was highest Uncemented fixations compared other modes but this difference insignificant according AOANJRR. hybrid were preferred over cemented uncemented clearly predominant fixation preference rising past years. COC COP combinations reported have lowest YRR use has been both UK Australia recent past. 40mm showed best survival rate 36mm largest with better survival. increased quality XLPE (ultra-high molecular weight polyethylene) reason ability larger low dislocation wear Non used Conclusion
 Both Registries favour or Hybrid bearings